| 吉林某难处理含铜金精矿硫脲浸金试验研究 |
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| 引用本文： | 马龙.吉林某难处理含铜金精矿硫脲浸金试验研究[J].矿产综合利用,2011,32(4):18-21. |
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| 作者姓名： | 马龙 |
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| 作者单位： | 厦门紫金矿冶技术有限公司; |
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| 基金项目： | 福建省科技厅科技计划项目资助(201H7018) |
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| 摘 要： | 针对吉林某难处理含铜金精矿进行了硫脲浸金试验研究,考察了硫脲用量、硫脲浓度、三价铁离子浓度和浸出时间等因素对浸金效果的影响。试验结果表明,在矿浆液固比为4∶1,矿浆pH值为1,硫脲用量160kg/t时,常温浸出8h,金的浸出率可由全泥氰化浸出的57.14%提升至91%以上。浸金过程中铜的浸出率保持在2.5%以下,铜浸出较少。
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| 关 键 词： | 硫脲 金精矿 黄铜矿 浸出 |
Extraction of Gold from a Refractory Gold Concentrate Containing Chalcopyrite by Thiourea Leaching in Jilin |
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| MA Long.Extraction of Gold from a Refractory Gold Concentrate Containing Chalcopyrite by Thiourea Leaching in Jilin[J].Multipurpose Utilization of Mineral Resources,2011,32(4):18-21. |
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| Authors: | MA Long |
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| Affiliation: | MA Long(Zijin Mining and Metallurgy Technology Co.,Ltd.,Xiamen,Fujian,China) |
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| Abstract: | Experimental research on thiourea leaching of gold was carried out on a refractory gold concentrate which contains chalcopyrite,investigating the effects of dosage and concentrate of thiourea,ferric ion and leaching time on gold leaching.When the ration of liquid to solid is 4∶1,pH value is 1 and leaching time is 8h under the usual temperature,the leaching rate of gold is improved from 57.14% to 91%.During the course the leaching rate of copper is less than 2.5%,which has little influence on gold recovery and the following copper recovery. |
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| Keywords: | Thiourea Gold concentrate Chalcopyrite Leaching |
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